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Observation Date: 
12/25/2017
Observer Name: 
mark white
Region: 
Salt Lake
Location Name or Route: 
Guardsmans Pass area
Weather
Sky: 
Broken
Wind Direction: 
Southwest
Wind Speed: 
Moderate
Weather Comments: 
Moderate to strong winds moving snow on the high ridge line, not to bad down off the ridges. Warm and somewhat damp.
Snow Characteristics
New Snow Depth: 
5"
New Snow Density: 
High
Snow Surface Conditions: 
Powder
Dense Loose
Snow Characteristics Comments: 

5 inches of new fairly high density snow capping off the 15 inches from Saturday, inverted in most terrain but surfable on fat skis with some speed.

Red Flags
Red Flags: 
Recent Avalanches
Wind Loading
Cracking
Collapsing
Poor Snowpack Structure
Red Flags Comments: 
Same red flags today as yesterday but the collapsing and cracking was much more in your face due to the inverted nature of the snow.
Comments: 

Started the day up on the Guardsmans pass road and ended up on the west side of Scott's Bluff, high wind speeds on the ridge line was loading up the N-NE facing slopes on the PC Ridgeline. I was a bit surprised not to see any natural activity on Scott"s or in South Monitor but I have a feeling the slab has stiffened up now and needs some sort of trigger to collapse the slope which is tough to do from the ridge line due to wind scouring. Down out of the wind we experienced multiple large collapses with shooting cracks on road cuts and steep test slopes. We did manage to get one steep roll over to fracture and move a few feet, it broke about 16 inches deep on large grain facets. At this point in time it seems like the gun is loaded on several steep upper elevation N facing slopes that have not slid and a trigger is all that is required to get the gun to fire.

Photos: Shooting cracks in the inverted snow-pack, fracture initiated on a steep roll over, wind forming drifts on the road.

Still think considerable for upper elevation E,N,W facing slopes that have not avalanched especially if the wind continues to blow.

Today's Observed Danger Rating: 
Considerable
Tomorrows Estimated Danger Rating: 
Considerable
Snow Profile Coordinates: 
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